| Cadence DSI bridge |
| ================== |
| |
| The Cadence DSI bridge is a DPI to DSI bridge supporting up to 4 DSI lanes. |
| |
| Required properties: |
| - compatible: should be set to "cdns,dsi". |
| - reg: physical base address and length of the controller's registers. |
| - interrupts: interrupt line connected to the DSI bridge. |
| - clocks: DSI bridge clocks. |
| - clock-names: must contain "dsi_p_clk" and "dsi_sys_clk". |
| - phys: phandle link to the MIPI D-PHY controller. |
| - phy-names: must contain "dphy". |
| - #address-cells: must be set to 1. |
| - #size-cells: must be set to 0. |
| |
| Optional properties: |
| - resets: DSI reset lines. |
| - reset-names: can contain "dsi_p_rst". |
| |
| Required subnodes: |
| - ports: Ports as described in Documentation/devicetree/bindings/graph.txt. |
| 2 ports are available: |
| * port 0: this port is only needed if some of your DSI devices are |
| controlled through an external bus like I2C or SPI. Can have at |
| most 4 endpoints. The endpoint number is directly encoding the |
| DSI virtual channel used by this device. |
| * port 1: represents the DPI input. |
| Other ports will be added later to support the new kind of inputs. |
| |
| - one subnode per DSI device connected on the DSI bus. Each DSI device should |
| contain a reg property encoding its virtual channel. |
| |
| Cadence DPHY |
| ============ |
| |
| Cadence DPHY block. |
| |
| Required properties: |
| - compatible: should be set to "cdns,dphy". |
| - reg: physical base address and length of the DPHY registers. |
| - clocks: DPHY reference clocks. |
| - clock-names: must contain "psm" and "pll_ref". |
| - #phy-cells: must be set to 0. |
| |
| |
| Example: |
| dphy0: dphy@fd0e0000{ |
| compatible = "cdns,dphy"; |
| reg = <0x0 0xfd0e0000 0x0 0x1000>; |
| clocks = <&psm_clk>, <&pll_ref_clk>; |
| clock-names = "psm", "pll_ref"; |
| #phy-cells = <0>; |
| }; |
| |
| dsi0: dsi@fd0c0000 { |
| compatible = "cdns,dsi"; |
| reg = <0x0 0xfd0c0000 0x0 0x1000>; |
| clocks = <&pclk>, <&sysclk>; |
| clock-names = "dsi_p_clk", "dsi_sys_clk"; |
| interrupts = <1>; |
| phys = <&dphy0>; |
| phy-names = "dphy"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| ports { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| port@1 { |
| reg = <1>; |
| dsi0_dpi_input: endpoint { |
| remote-endpoint = <&xxx_dpi_output>; |
| }; |
| }; |
| }; |
| |
| panel: dsi-dev@0 { |
| compatible = "<vendor,panel>"; |
| reg = <0>; |
| }; |
| }; |
| |
| or |
| |
| dsi0: dsi@fd0c0000 { |
| compatible = "cdns,dsi"; |
| reg = <0x0 0xfd0c0000 0x0 0x1000>; |
| clocks = <&pclk>, <&sysclk>; |
| clock-names = "dsi_p_clk", "dsi_sys_clk"; |
| interrupts = <1>; |
| phys = <&dphy1>; |
| phy-names = "dphy"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| ports { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| port@0 { |
| reg = <0>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| dsi0_output: endpoint@0 { |
| reg = <0>; |
| remote-endpoint = <&dsi_panel_input>; |
| }; |
| }; |
| |
| port@1 { |
| reg = <1>; |
| dsi0_dpi_input: endpoint { |
| remote-endpoint = <&xxx_dpi_output>; |
| }; |
| }; |
| }; |
| }; |
| |
| i2c@xxx { |
| panel: panel@59 { |
| compatible = "<vendor,panel>"; |
| reg = <0x59>; |
| |
| port { |
| dsi_panel_input: endpoint { |
| remote-endpoint = <&dsi0_output>; |
| }; |
| }; |
| }; |
| }; |